Demountable felly-band for vehicle-wheels.



J. E. PERRAULT. DEMOUNTABLE FELLY BAND FOR VEHICLE WHEELS.

' APPLICATION FILED DEC. 14. 1914.

1,15%,54o Patented Sept. 7, 1915.

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JOSEPH E. PERRAULT, 0F BELMONT, MASSACHUSETTS, ASSIGNOR TQ HOOD RUBBERCOMPANY, OF WATERTOWN, MASSACHUSETTS, A CORPORATION OF MASSAGHUSET'IS.

DEMOUN TABLE FELLY-BAND FOR VEHICLE-WHEELS.

specification of Letters Patent.

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Applieation filed December 14, 1914. Serial No. 877,182.

To all whom it may] concern.

Be it known that I, JOSEPH E. PERRAULT, a citizen of the United States,residing at Belmont, Massachusetts, have invented certain new and usefulImprovements in Demountable Felly-Bands for Vehicle-WVheels, of whichthefollowing is a specification.

My present invention relates to improvements in demountable felly bandsfor tie hicle Wheels and is designed more especially for use inconnection with wheels of heavy trucks, adapted to receive and removablyhold cushion or pneumatic tires.

Among the objects of the invention are to provide a felly band which maybe readily applied and firmly held in position and which may bereadily-removed when it is necessary to dcmount the tire.

Another object is to provide a construction which may be economicallymanufactured.

An embodiment of my invention is illustrated in the accompanying drawingin which;

Figure 1 is a sectional perspective view, and, Fig. 2 is a perspectivedetail of one of the wedges.

Referring by reference characters to this drawing, the letter Adesignates a wooden folly and A, the permanent metal felly band of amotor vehicle wheel, such as or dinarily used.

B designatesthe removable felly band which is designed to carry thecushion or resilient tire, which may be of any desired construction.

The outer surface of the permanent metal folly band A is made trulycylindrical but the inner or opposing surface of the band .B is madecylindrical only for a portion there of, as indicated at 5 and isprovided with outwardly flaring surfaces 6, providing wedgeshaped spacesbetween itself and the permanent band A. On each side within thesespaces I fit a plurality of wedges G which have a transverse sectionconforming to the wedge-shaped spaces between the bands A and B andwhich are curved longitudinally to approximately the curve of theperiphery of the wheel. These wedges as shown in Fig. 1, are appliedfrom opposite sides to the wedge-shaped spaces between the inner andouter bands and are forced into position to firmly clamp the demountablefelly band B and securely hold it in place by the side flanges or ringsD, which are drawn together by bolts E provided with suitable heads andnuts.

In practice, as compared with the entire periphery of the wheel anddispose them at distances apart approximately equal to or slightly ex'ceeding the diameter of the bolt, so that the bolts may bepassed'through between the ad oining ends of the wedgeblocks. The insidecircumference B of the demountable band B also bears such a relation tothe exterior circumference of the band A as to I make the wedges veryshort leave space for the passage of the bolts and w by this means, Iavoid the necessity of boring or drilling any of these parts, saving incost of manufacture and producmg strong and more durable results.

thereby I The wedge blocks have-their wedge sun faces formed on a greati by the tightening of the bolts and thus firmly hold the demountableband in position. At the same time howeverfas the wedges individuallyare very short, they may be removed with comparative ease when it isnecessary to demoun't' the band B. To facilitate the removal of thewedges, I provide them with cutaway portions 0, leaving projecting ears0 so that after the flanges D and bolts Fl have been removed a suitabletool may be inserted into the space left by a long angle so as to exertone of the bolts and its end engaged underneath. one of the projectionsc and the wedge quickly pried out, thus avoiding the necessity of doingany hammering, which mutilates the parts or is liable to break them. TheWedge-blocks are of such dimensions as to cause a slight space to beleft between the side rings or flanges I) and the Wedges of thedemountable band B, so as to leave plenty of space for the wedges to beforced inuntil the band is held'perfectly tight.

pressure when they are forced home I I have referred to the Wedge-blocksas be mg curved longitudinallyto approximately fit the curvature of thefolly bands and the reason I use the word approximately is that due tothe shortness of each wcdgeblock it is not necessary that, thiscurvature should be exact. In fact, ,on'ie tages of my invention isthatbyfiising such a short wedge block, the same; blocks may be usedwith wheels of difi' {rent diameters.

eels of motor trucks within de termined limits and theseflimits are suchf the advan that Wedge blocks of the type shown herein may be used withall diameters of wheels. This avoids the necessity of manufacturing aplurality of sizes of blocks and also avoids the liability of Wedgeblocks of the wrong size or shape being used, which would likely happenif wheels employing different sizes were being assembled in the samemachine scribed.

2. In combination a permanent felly band,

a removable felly band. concentric thererings and passing through thespaces between the ends of the wedge blocks, substantially as described.

3. The combination with a permanent wheel felly band, of a removablefelly band having oppositely inclined faces on its inner periphery, aplurality of wedge blocks entered from opposite sides between saidpermanent felly band and removable ielly band and spaced from eachother, and clamping rings connected to each other through the spacesbetween the adjacent ends of said wedge blocks, each of said wedgeblocks having a lug or extension for engagement with a prying tool,substantially as described.

4. In combination a Wheel felly band and an outer removable band, one ofsaid bands having oppositely inc-lined faces, a plurality of wedgeblocks entered from opposite sides between said bands and spaced fromeach other, each of said wedge blocks having a lug or extension forengagement with a prying tool, and. removable means for clamping saidwedge blocks in position.

Q In testimony whereof, I ailix my signature in presence of twowitnesses J OSEPH PERRAULT. ivitnesses W. W. Burma,

EMMA G, CoLLrN-s.

